The Prime Minister's special envoy, retired Air Chief Marshal Angus Houston, says he wants the police force deployed as quickly as possible to ensure a thorough investigation.

He welcomed comments from Ukraine's acting prime minister Volodymyr Groysman that the ratification of an arrangement to allow international help was a priority.

Mr Groysman said he hoped the Ukrainian parliament would adopt the agreement next week.

"Australia understands that this is a politically challenging time for Ukraine, and we greatly appreciate the assistance and cooperation received from president Poroshenko, acting prime minister Groysman, foreign minister Klimkin and other Ukrainian officials," Air Chief Marshal Houston said.

At the moment, the guys are departing out of Eindhoven Air Base, where we are now. And it's a three-hour flight down to Ukraine. And from Ukraine we load up cargo and human remains and return to Eindhoven for another three-hour flight and then take part in the ramp ceremony here at Eindhoven Airport.

It's a big task. It's a very sad task. But all the folks deployed over here take great pride in taking part in it and just being able to help out with getting the people back to their families.

Probably the most challenging moment has been meeting the families after the ceremony here at Eindhoven. That's been certainly quite a touching moment.

They are thankful for what we are here doing. They're obviously going through untold grief but their only real response has been thankful that we're here.

Our crews are doing our utmost to get those people back to their families as soon as possible. We treat everyone we bring back as an Australian, as a fellow human being. And the most important thing is to get them home to their family as soon as possible.

I'd like to think if it was my family member out there and somebody else was able to help, they would do the same thing.

A total of 189 bodies have so far been brought to the Netherlands from the crash site and will undergo formal identification by a team of forensic experts.

The flights are expected to continue for at least another day.

Ms Bishop visited the location where the dead of MH17 are being loaded into body bags. After being taken off a train, they are transported to Kharkiv airport to begin their journey home.

"I pay tribute to the people who are working there and carrying out this difficult but necessary task," she said.

"Their job is not easy, but at last the bodies and remains are in the care of people who will look after them."

Prime Minister Tony Abbott yesterday announced a further 100 AFP officers would be deployed to the Netherlands ahead of any mission to help secure the crash site.

That number is on top of 90 officers already working on the tragedy, which includes 40 people working on identification of bodies in Ukraine and the Netherlands.

Mr Abbott has said many the AFP officers to be deployed in Ukraine will not be armed.

Dennis Gellatly, from the Australian Federal Police Association, told AM a briefing would be held on Monday to "understand exactly what is occurring in terms of risk mitigation and security of personnel".

"[The AFP's] international deployment group component has been operating for well over a decade and they place a very great emphasis on training for these sorts of missions," he said.

Moscow denies plans to transfer rocket systems

It has been a difficult task in the middle of what is a major geopolitical struggle for the control of eastern Ukraine.

Moscow has rejected accusations from Washington of more extensive Russian involvement in the conflict.

The US state department says Russian troops have been firing artillery from within their territory across the border into Ukraine, while the Pentagon says Russia is preparing an imminent transfer of rocket systems to the separatists.

But Russia's foreign ministry says the US is running a baseless "smear campaign" using a "basketful" of "anti-Russian clichés".

The US Ambassador to NATO says there are around 15,000 Russian troops amassed on the Ukrainian border.